内容
「たった1日で基本が身に付く！ Docker/Kubernetes超入門」を読み実機を動かしていたところ、minikubeインストールでドはまりしました。
対処（コマンド）
SELinux無効化
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setenforce 0 |
swap無効化
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swapoff -a |
対処（ansible）
本書の内容から以下を変更しました。
・Dockerのバージョン下げ（minikubeが最新版Docker非対応のため。
・kubectlのバージョン変更
・client crtのパス変更
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- hosts: all remote_user: root tasks: - name: Disable firewalld systemd: name: firewalld state: stopped enabled: false - name: Change sshd config replace: dest: '/etc/ssh/sshd_config' regexp: '#MaxSessions 10' replace: 'MaxSessions 100' register: sshd_config - name: Restart sshd when config changed systemd: name: sshd state: restarted daemon_reload: yes enabled: yes when: sshd_config.changed - name: Copy ssh public key copy: src: ./id_rsa.pub dest: /root/.ssh/id_rsa.pub mode: 0644 - name: Copy ssh private key copy: src: ./id_rsa dest: /root/.ssh/id_rsa mode: 0600 - name: Copy shell script copy: src: ./set_secure_context.sh dest: /root/set_secure_context.sh mode: 0755 - name: Copy shell script copy: src: ./set_insecure_context.sh dest: /root/set_insecure_context.sh mode: 0755 - name: Add authorized key authorized_key: user: root state: present key: "{{ lookup('file', './id_rsa.pub') }}" - name: Install tools yum: name: "yum-utils,device-mapper-persistent-data,lvm2,zip,unzip" state: latest - name: Add Docker repo get_url: url: https://download.docker.com/linux/centos/docker-ce.repo dest: /etc/yum.repos.d/docer-ce.repo - name: Enable Docker Stable repo ini_file: dest: /etc/yum.repos.d/docer-ce.repo section: "docker-ce-stable" option: enabled value: "1" - name: Install docker yum: name: "docker-ce,docker-ce-cli,containerd.io" state: latest - name: Downgrade docker yum: name: "docker-ce-3:19.03.15-3.el8" allow_downgrade: yes - name: Download Docker Compose get_url: url: https://github.com/docker/compose/releases/download/1.24.1/docker-compose-Linux-x86_64 dest: /usr/local/bin/docker-compose mode: 0511 - name: Start/Enable docker systemd: name: docker state: started daemon_reload: no enabled: yes - name: Download Minikube get_url: url: https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 dest: /usr/local/bin/minikube mode: 0511 - name: Update kernel settings sysctl: name: net.bridge.bridge-nf-call-iptables value: "1" sysctl_set: yes state: present reload: yes - name: Check whether kubectl exist or not stat: path=/usr/local/bin/kubectl register: result1 - name: Install Kubernetes if kubectl does not exist when: not result1.stat.exists shell: /usr/local/bin/minikube --vm-driver=none start - name: Download kubectl get_url: url: https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/linux/amd64/kubectl dest: /usr/local/bin/kubectl mode: 0511 - name: Check whether kube-config.zip exit or not stat: path=/root/kube-config.zip register: result2 - name: Generate kube-config if kube-config.zip does not exist when: not result2.stat.exists shell: /usr/local/bin/kubectl config view --raw > /root/config - name: Copy ca.* and client.* to /root/ when: not result2.stat.exists shell: cp /root/.minikube/ca.* /root/; cp /root/.minikube/profiles/minikube/client.* /root/ - name: Make kube-config.zip archive: path: - /root/config - /root/set_secure_context.sh - /root/set_insecure_context.sh - /root/ca.key - /root/ca.crt - /root/client.key - /root/client.crt dest: /root/kube-config.zip format: zip |
リトライ
リトライは削除してからのリトライが確実です。
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minikube delete minikube --vm-driver=none start |